Samsung 940BW Service Manual page 31

Separate Sync
Video
C D E
Sync
B
A
A : Line time total
C : Back porch
E : Front porch
Table 2 . Timing Chart
Mode
Timing
fH (kHz)
A μsec
B μsec
C μsec
D μsec
E μsec
fV (Hz)
O msec
P msec
Q msec
R msec
S msec
Clock
Freq.
(MHz)
Polarity
H.Sync
V.Sync
Remark
Video
Q R S
Sync
P
O
B : Horizontal sync width
D : Active time
S : Front porch
IBM
1440/75 Hz
1440/60 Hz
1440x900
1440x900
55.935 70.635
14.157
17.878
1.427 1.112
2.178 1.814
10.530
13.521
0.751 0.702
59.887 74.984
13.336
16.698
0.107 0.085
0.467
0.447
12.741
16.090
0.054 0.042
136.750
106.500
Negative
Negative
Positive
Positive
Separate Separate
O : Frame time total
Q : Back porch
14 Reference Infomation
H/V Composite Sync
Sync-on-Green
P : Vertical sync width
R : Active time
14-5